The draper 5 piece forstner drill bit set is a professional woodworking tool kit designed for creating precision flat-bottomed holes in various timber products. Particularly suited to fitting concealed cabinet hinges, this versatile set is ideal for joiners, carpenters and kitchen fitters working with softwood, medium hardwood, chipboard and mdf. Manufactured from high-strength carbon steel with tungsten carbide tips, these bits feature twin cutting edges and quad spurs that deliver fast waste removal and clean, accurate cuts. The quad-point design ensures precise centring and reduced walking when starting holes. The set includes five commonly used sizes 15mm, 20mm, 25mm, 30mm and 35mm covering the majority of concealed hinge and hardware installation requirements. Each bit is fitted with a round shank 7mm for smaller sizes, 8mm for larger making them compatible with standard 10mm or 13mm drill chucks found on most professional and domestic power drills. With a 50mm cutting depth, these bits provide sufficient penetration for most cabinet and furniture applications. The complete set arrives in a practical wooden storage box that keeps the bits organised and protected between jobs. Features and benefits: creates flat-bottomed holes in softwood, medium hardwood, chipboard and mdf ideal for installing concealed hinges in cabinet work tungsten carbide tipped with twin cutting edges for clean, precise cutting quad-point design for accurate centring and reduced bit walking comp...